Brake-shoe



UNITED` STATES PATENT OFFICE.

AXEL S. VOGT, OF ALTOONA, PENNSYLVANIA, ASSIGNOR TO CHARLES WV. ROEPPER, OF ALLIANCE, OHIO.

BRAKE-SHOE.

SIPECIFICATION forming part of Letters Patent No. 444,174, dated January 6, 1891.

Application led July 24, 1889. Renewed May 26, 1890. Serial No. 353,143. (No model.)

To all whom, it may concern:

Be it known that I, AXEL SAMUEL Voor, a subject of the King of Sweden, and a resident of Altoona, county of Blair, and State of Pennsylvania, have invented certain new and useful Improvements in Brake-Shoes, of which the following is a specification, the principle of the invention being herein explained and the best mode in Which I have contemplated applying that principle, so as to distinguish it from other inventions.

The object of this invention is to provide a form of brake-shoe Whose curved flange shall be adapted to prevent undue cutting in of the tlange of Va chilled car-Wheel as the two are brought into mutual Wear by engagement.

Heretofore a brake-shoe has been formed to work with a chilled car-Wheel irrespective of their mutual engagement relative to the portion of the Wheel which alone is chilled. Thus the curved iianges of brake-shoes have extended over the flanges of chilled car-Wheels beyond the line of the chill of such Wheellianges, so that the unchilled portions of the Wheel-flanges are brought into wearing contact With the brake-shoe flanges. This results in undue Wear of chilled car-Wheels-an'd is correspondingly disadvantageous. My invention obviates such disadvantage by constructing the curved liange of a brake-shoe so that its free edge shall be substantially in the same curvilinear plane with the terminal portion of the chill of the car-wheel Harige, whereby the shoe-flange is brought into contact With onlythe chilled portion of its wheelflange.

Referring to the drawing, which is a central vertical section in transverse of a brake shoe and corresponding part of a car-Wheel,

the body A of the brake-shoe is provided with the curved flange B. This flange extends only partially about the dange C of the car- Wheel and terminates in the same horizontal line with the adjacent terminal portion of the chill ot' the Wheel-ilange. The free Workingedge o, of the shoe-flange is thus located in a curvilinear plane, which is the same curvilinear plane in which the inner circular p0rtion b of the chill of the car-Wheel flange is located. The chill c of the car-wheel is substantially of the same depth alike as regards the tread and llan'ge throughout their Working-faces, and the brake-shoe flange does not engage with the wheel-flange, except and only as to the chilled portion thereof, and thus the flange of the chilled car-Wheel is prevented from undue Wear of the brake-shoe and the good result ot my invention obtains.

I claim- 1. The combination, with a chilled car- Wheel, of a brake-shoe Whose curved flange terminates with the terminal portion of the chill of the Wheel-flange, substantially as set forth.

2.. The combination, With a chilled car- Wheel, of a brake-shoe having its free Working-edge a located in the same curvilinear plane with the inner circular portion l) of the chill of the wheel-liange, substantially as set forth.

In testimony that I claim the foregoing to be myinvention I have hereunto set my hand this 1st day of July, A. D. 1889.

AXEL S. VO GT.

lVitnesses:

W. D. CoUoH, Taos. P. FOSTER. 

